275 results about "Throttle opening" patented technology

The invention provides an electromagnetic clutch combination control method, a power system and a medium. The electromagnetic clutch combination control method comprises the steps that the real-time current of an electromagnetic clutch, the accelerator opening degree change rate and the vehicle speed are obtained; under the condition that the vehicle meets the pre-combination condition of the electromagnetic clutch, a first target value is determined according to the number of combination failures of the electromagnetic clutch, and current with the magnitude being the first target value is applied to an electromagnetic valve of the electromagnetic clutch so as to drive the electromagnetic clutch to be combined; under the condition that the real-time current of the electromagnetic clutch is larger than or equal to the first target value, preloading torque is determined based on the accelerator opening degree change rate and the vehicle speed; and controlling the output torque of the engine according to the preloading torque. The pre-combination time is shortened while successful combination of the electromagnetic clutch is guaranteed, and the dynamic property of the whole vehicle is improved.

The present application belongs to the technical field of vehicle mass online estimation, in particular to a vehicle mass online estimation method based on fuzzy logic and weighted least square method, comprising the following steps: 1) obtaining longitudinal acceleration sensor measurement value signal, longitudinal speed signal, engine output torque signal, gear signal, throttle opening signal, brake pedal signal and steering wheel angle signal from vehicle CAN bus; 2) correcting the measurement value of longitudinal acceleration sensor; 3) calculating equivalent driving force and equivalent acceleration; 4) calculating working condition fitness degree by using fuzzy logic algorithm; 5) estimating vehicle mass by using weighted least square method; and 6) suspending and starting vehicle mass estimation. The structure is reasonable, and the accuracy and working condition adaptability of vehicle mass online estimation can be improved during use.

The invention relates to the field of vehicle control, in particular to an intelligent oil-saving sliding control method and system for an AMT commercial vehicle and the commercial vehicle, and the method comprises the steps: obtaining a gradient threshold interval and hysteresis width corresponding to a current state based on the total load of the vehicle, the real-time vehicle speed and the real-time road gradient; whether the engine water temperature and the accelerator opening degree signal meet preset fuel-saving sliding admission conditions or not is judged in real time; when all the access conditions are met and the real-time gradient and the vehicle speed are within the threshold interval, gear combination of the AMT gearbox is maintained, an engine is controlled to enter a fuel cut-off mode, and the vehicle enters an intelligent fuel-saving sliding state based on engine reverse towing; and if the real-time gradient exceeds the safety range, engine fuel oil supply is immediately recovered, and the in-cylinder braking or exhaust braking function of the engine can be cooperatively activated, so that the fuel-saving sliding state is stably quitted. And on the premise of ensuring compliance and safety of the whole process, the fuel economy is effectively improved.

The application discloses a fuel injection control method and device, electronic equipment and storage medium. The fuel injection control method comprises the following steps: after the accelerator pedal is stepped on, determining the engine torque demand according to the current working state of the engine and the stepping amount of the accelerator pedal, and determining the required intake air amount and the required fuel amount of the engine according to the engine torque demand; determining the current throttle opening of the engine according to the required intake air amount, and after the current fuel injection pulse width of the fuel injector is determined according to the required fuel amount, controlling the throttle valve to hit the target position corresponding to the current throttle opening, and controlling the fuel injector to open to the current fuel injection pulse width; acquiring the current fuel injection rail pressure, and determining the fuel injection mass flow of the engine by querying the fuel injection mass flow calculation MAP according to the current fuel injection pulse width and the current fuel injection rail pressure; and inputting the fuel injection mass flow into the engine model to output the current air-fuel ratio. The application realizes real-time adjustment of the fuel injection mass flow.

The invention discloses an engine multi-vehicle-type adaptive NVH quality optimization method and system, and belongs to the technical field of automobile engine debugge.The method comprises the steps that after an engine is installed on a to-be-adapted vehicle, vehicle working condition data are collected in real time, the vehicle working condition data comprises a vehicle speed, an accelerator opening degree, an engine rotating speed, a gear, a hydraulic torque converter locking state and an engine oil temperature signal; the vehicle working condition data is compared with the working condition of the engine noise sensitive working condition, and whether the engine noise sensitive working condition is entered or not is recognized; when the engine has the noise sensitive working condition, an NVH control strategy embedded in an engine electronic control unit is activated; the NVH control strategy comprises adjustment of an engine ignition angle and oil injection parameters; the engine is controlled according to the ignition angle optimization control instruction and the oil injection parameter optimization instruction; and when the vehicle runs out of the working condition of the noise sensitive working condition of the engine or gear shifting is completed, the conventional combustion control logic is recovered. And the rising rate of the pressure in the cylinder is effectively reduced, so that the structural knocking noise within the range of 150-600Hz is inhibited.

The invention discloses a throttling valve with throttling opening controlled by an electric cylinder and a working method of the throttling valve, and relates to the technical field of pressure regulation of throttling valves. A pressing assembly for pressing a valve element downwards is arranged between a frame and a valve deck; pulling assemblies used for pulling down the valve element are arranged on the left side wall and the right side wall of the conveying pipe correspondingly, the pulling assembly located on the left side comprises a blind groove formed in the inner side wall of the conveying pipe and a nut fixedly arranged on the left side of the conveying pipe and opposite to the blind groove in the left-right direction, a pin shaft is fixedly arranged between the front wall and the rear wall of the blind groove, and an L-shaped force transmission block located in the blind groove is rotationally installed on the pin shaft; a screw is in threaded connection with the interior of the nut and extends into the blind groove, an arc-shaped end is fixedly arranged at the extending end of the screw, and the arc-shaped end and the long block of the L-shaped force transmission block are opposite in the left-right direction. The pressure regulating valve has the beneficial effects that the valve element moving in place can be prevented from continuously moving upwards, and the pressure regulating precision is higher.

The invention discloses a hydrogen engine crankcase hydrogen concentration control method, and relates to the field of hydrogen engines, and the method comprises the steps: placing a hydrogen engine on a rack for testing, and obtaining a target hydrogen concentration, an actually measured hydrogen concentration and a crankcase blow-by amount; according to the target hydrogen concentration, the actually measured hydrogen concentration and the crankcase blow-by amount, the target working condition supplementary air amount is calculated; according to the target working condition supplementary air amount, a full-working-condition supplementary air amount database is generated based on the rotating speeds and loads of the different working conditions; obtaining the amount of fresh air needing to be supplemented under the current target working condition according to the full-working-condition air supplementing amount database; the air inlet pressure, the air inlet temperature and the crankcase pressure are obtained; the method comprises the following steps: calculating the opening degree of a throttle valve by combining the air inlet pressure, the air inlet temperature and the crankcase pressure, comparing the hydrogen concentration measured by a hydrogen concentration sensor according to the current target working condition with the target hydrogen concentration to obtain a hydrogen concentration deviation and generate a corrected fresh air amount, and carrying out closed-loop control on the actual crankcase hydrogen concentration by adjusting the opening degree of the throttle valve.

The invention discloses a gas engine cold start difficulty diagnosis method, system and device and a readable storage medium, and relates to the field of cold start fault detection, and the method specifically comprises the steps: determining an initial idle speed segment based on a real-time vehicle speed, a real-time engine rotation speed, a neutral gear signal and a clutch signal when the lowest environment temperature is detected to be smaller than a preset environment temperature threshold value; the initial idling segment is a working state when the vehicle is static and an engine is in an idling mode; in the initial idle speed segment, based on the maximum value of the engine rotating speed, the real-time engine rotating speed, the real-time gas rail pressure, the real-time gas rail temperature, the engine water temperature at the starting point of the initial idle speed segment, the real-time accelerator opening degree and the fault code, the cold start difficulty result of the gas engine is determined; the fault code is a corresponding fault code when the pressure of the intake manifold is smaller than a preset pressure threshold value of the intake manifold. According to the invention, specific faults of cold start difficulty can be identified efficiently and accurately.

The invention discloses a virtual fuel vehicle power assembly mapping method and system. The method comprises the steps that the vehicle speed of an electric vehicle and input signals of an accelerator pedal and a brake pedal are received; performing nonlinear mapping on the accelerator pedal input signal to generate a virtual accelerator opening degree, and performing cooperative control in combination with a brake pedal signal; based on the vehicle speed and the virtual accelerator opening degree, a virtual target gear is determined through a multi-dimensional gear shifting diagram and a self-adaptive gear shifting strategy; the method is characterized in that a dynamic slip frequency factor related to the vehicle speed, the virtual accelerator opening degree and the brake pedal opening degree is introduced in the non-gear-shifting state so as to simulate the slip frequency effect of a torque converter; in the gear shifting state, transient smooth transition of the rotating speed is simulated. According to the method, the nonlinear dynamic behavior of the fuel vehicle can be accurately simulated in real time with low calculation overhead, the authenticity and immersion of simulation are remarkably improved, and powerful support is provided for virtual testing, control system development and man-machine interaction application.

The application discloses a hydrogen engine crankcase hydrogen concentration control method, and relates to the field of hydrogen engines, which comprises the following steps: placing a hydrogen engine on a test bench to test, obtaining a target hydrogen concentration, an actually measured hydrogen concentration and a crankcase blow-by amount; calculating a target working condition supplementary air amount according to the target hydrogen concentration, the actually measured hydrogen concentration and the crankcase blow-by amount; generating a full working condition supplementary air amount database according to the target working condition supplementary air amount, based on the rotating speed and the load of different working conditions; obtaining the fresh air amount required to be supplemented by a current target working condition according to the full working condition supplementary air amount database; obtaining an intake air pressure, an intake air temperature and a crankcase pressure; combining the intake air pressure, the intake air temperature and the crankcase pressure to calculate a throttle opening degree; comparing the hydrogen concentration measured by a hydrogen concentration sensor according to the current target working condition with the target hydrogen concentration to obtain a hydrogen concentration deviation; generating a corrected fresh air amount; and performing closed-loop control on the actual crankcase hydrogen concentration by adjusting the throttle opening degree.

The application discloses a kind of vehicle control method, device and vehicle, it is related to vehicle technical field.The method comprises: obtaining driving information, wherein, driving information is used to determine the acceleration of vehicle, throttle opening state and brake pedal state;In the preset time interval, target driving mode is determined based on driving information, wherein, target driving mode is used to represent driving style;Target torque is determined based on target driving mode;Vehicle is controlled based on target torque.The application solves the technical problem that the driver is intervened or reminded by analyzing driving habits in the related art, which leads to poor comprehensiveness, poor learning, low efficiency and poor driving experience.

The application provides a torque control method, device, equipment and medium of a natural gas engine, and the method comprises the following steps: determining a target control mode required by a current natural gas engine, and acquiring a target parameter corresponding to the target control mode; inputting the target parameter into a preset throttle opening formula to obtain a target throttle opening; and controlling the torque of the natural gas engine according to the target throttle opening; wherein the throttle opening formula is obtained by combining a throttle equation used for throttle control and a speed density method equation. The throttle opening formula is obtained by combining the throttle equation used for throttle control and the speed density method equation according to the characteristics of the natural gas engine. For different target control modes, the throttle opening formula adopts different target parameters to calculate the throttle opening, so that the torque corresponding to the throttle opening can adapt to the target control mode, thereby improving the controllability of the natural gas engine.

The invention discloses an electric vehicle sound wave simulation method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle development. The method comprises the steps that dynamic driving signals of a vehicle are obtained, wherein the dynamic driving signals comprise a vehicle speed signal, an accelerator opening degree signal and a virtual gear speed ratio signal; based on the vehicle speed signal and the virtual gear speed ratio signal, the virtual rotating speed of the vehicle under each virtual gear is determined; determining whether the vehicle meets a tempering sound effect triggering condition or not based on the virtual rotating speeds, the accelerator opening degree signals and the change characteristics of the virtual gears of the vehicle; and when the vehicle meets the backfire sound effect triggering condition, determining the dynamic simulation sound wave of the vehicle based on the virtual rotating speed and the recorded preset backfire sound effect. The driving experience of the user is improved.

This invention relates to an electronic gear shifting device for electric motorcycles, comprising an electronic shifting unit, an electronic clutch unit, and a throttle position sensor. Based on the rider's operation, the device outputs a shift signal, a clutch signal, and a throttle opening signal. A vehicle controller receives these signals and determines a target gear for the electric motorcycle. The vehicle controller then looks up a motor torque command based on the target gear and outputs the command to a motor controller. The motor controller then controls a power motor of the electric motorcycle, enabling the electric motorcycle to simulate the power performance of a conventional geared motorcycle without the need for a physical clutch or gearbox.

The application provides a shift control method and a control system of a fuel cell electric vehicle, and belongs to the technical field of fuel cell electric vehicle control, and solves the problem that the AMT control strategy in the prior art cannot effectively save energy and reduce emissions. The method comprises the following steps: obtaining the throttle opening degree, upshift speed and downshift speed of the AMT shift strategy in the vehicle power system during vehicle driving; based on the target of the lowest fuel consumption per 100 kilometers of the vehicle, the throttle opening degree, upshift speed and downshift speed are optimized in real time; the AMT is controlled to execute the optimized upshift speed and downshift speed to shift, and the fuel cell is controlled to execute the optimized throttle opening degree during shifting; the vehicle power system is calculated according to the optimized throttle opening degree, upshift speed and downshift speed, the optimized fuel consumption per 100 kilometers of the vehicle is output and displayed.

The invention discloses a vehicle control method, a storage medium, a program product, an electronic device and a vehicle, the vehicle is controlled based on a target wheel speed of each wheel when the vehicle is in a target driving mode, and the target wheel speed is at least determined according to an accelerator opening degree. Thus, due to the fact that the wheel speed control scheme is adopted in the scheme, under the complex working condition, the target wheel speed is determined through the accelerator opening degree to control the vehicle, the vehicle can be rapidly adjusted according to the target wheel speed, and therefore the problems that in the related technology, due to the fact that a torque control scheme is adopted, the vehicle performance is poor, and escaping is difficult are solved.

The invention relates to a method and system for acquiring and processing data relating to the performance of a vehicle traveling a route, which uses data acquisition units outside the vehicle, e. g., a GPS unit for detecting the vehicle position, an IMU unit for detecting the vehicle acceleration, a dedicated pressure sensor for detecting the vehicle braking pressure, a webcam for video-recording the route, and a monitor of the heart rate of the user who is driving the vehicle. The data acquired by means of the detection unit outside and inside the vehicle are processed by the system itself to obtain quantitative indices which define the performance of the vehicle traveling the given route, e. g., braking point, braking power, leaning angle i f the vehicle is a motorcycle, percentage of time with throttle opening above a certain threshold value, etc. Such quantitative indices are then compared by the system with further quantitative reference indices relating to a different performance of traveling the same route, by the same or another vehicle, to provide the rider with a feedback in order to improve his / her performance.

The invention relates to the technical field of natural gas engine control, and discloses an engine aftertreatment catalyst control method and device, electronic equipment and a medium. The method comprises the following steps: acquiring the oxygen storage capacity corresponding to at least one degradation degree three-way catalyst TWC; constructing a first mapping relation between each oxygen storage amount and the opening degree value of the throttle valve under the specific working condition of the engine; constructing a second mapping relation between each oxygen storage amount and the voltage set value of the rear oxygen sensor under the specific working condition of the engine; in the actual operation process of the engine, the degradation degree of the TWC is monitored in real time, and the current oxygen storage amount of the TWC is determined based on the degradation degree; and the emission state of the engine is adjusted based on the current oxygen storage amount, the first mapping relation and the second mapping relation so that the emission state can meet the emission standard. The exhaust emission level of the automobile can be improved, and energy consumption is reduced.

The invention discloses a vehicle energy management method and device, and belongs to the technical field of vehicles, and the vehicle energy management method comprises the steps: determining a target generated power compensation value of a range extender according to a current energy mode, a whole vehicle state, a current environment temperature, the current charge capacity of a battery, the charge capacity of each preset sampling period and a preset corresponding relation; the preset corresponding relation is a corresponding relation between a preset charge quantity difference value and a power compensation value of adjacent preset sampling periods; determining the maximum generated power limit value of the range extender according to the current vehicle speed and the current accelerator opening degree; and according to the current demand power of the user, the current power of the compressor, the current power of the heater, the target generated power compensation value and the maximum generated power limit value, the target generated power of the range extender is determined. The power generation power of the range extender can be dynamically adjusted, and the reliability of vehicle energy management is improved.

The invention provides an engine control method and device, a storage medium and electronic equipment, and the method comprises the steps that operation parameters of an engine are obtained, and the operation parameters comprise the actual load and the actual rotating speed of the engine, the rotating speed synchronization state of the engine and a starter and the rail pressure state of the engine; the working state of a relay of the starter is determined according to the actual load size of the engine, the rotating speed synchronization state and the rail pressure state of the engine, and the throttle valve opening degree of the engine is determined according to the rotating speed synchronization state, the rail pressure state of the engine and the size relation between the actual rotating speed of the engine and the set rotating speed; the relay of the starter is controlled to work according to the working state of the relay of the starter, and the throttle valve is controlled to work so that the actual rotating speed of the engine can be the same as the set rotating speed. According to the method, the actual rotating speed of the engine can be quickly aligned with the set rotating speed by controlling the relay to work and adjusting the opening degree of the engine throttle valve, so that the engine shaking time is shortened.

The present application relates to a kind of methods and devices based on exhaust passage carbon deposit amount correction throttle opening degree, comprising: collecting the particulate matter emission in exhaust of target engine under different speed and injection amount, form exhaust particulate emission chart;Based on exhaust particulate emission chart and the working time of engine, the cumulative emission of exhaust particulate matter is calculated;According to the particulate matter emission in exhaust, exhaust passage particulate matter attachment amount coefficient is calculated;According to the particulate matter attachment mass in exhaust passage, the particulate matter attachment mass in exhaust passage is calculated;According to the particulate matter attachment mass in exhaust passage, the correction value of exhaust passage flow coefficient is calculated;The throttle opening degree of engine is corrected using the correction value of exhaust passage flow coefficient to optimize the performance of engine.The present application can dynamically adjust throttle opening degree according to the exhaust particulate emission under different speed and injection amount, to adapt to different working conditions, ensure that engine works efficiently under various operating conditions.

The throttle device of the present application can reduce the occupied space in the axial direction of the throttle valve to achieve compact engine. The throttle device includes: a throttle device body, which supports the throttle valve in the throttle hole through the throttle valve shaft, and protrudes the throttle valve shaft on the outer side; a cover member, which divides the mechanism room containing the transmission mechanism with the outer side of the throttle device body; a motor, which is installed on the throttle device body, the rotation of the output shaft protruding into the mechanism room is transmitted to the throttle valve shaft through the transmission mechanism, and the amount of intake air flowing in the throttle hole is adjusted according to the opening and closing of the throttle valve; a throttle opening degree sensor, which is provided on the cover member and detects the rotation angle of the throttle valve shaft; and at least any one of an intake air temperature sensor and an intake air pressure sensor, the intake air temperature sensor is provided on the cover member and detects the temperature of the intake air, and the intake air pressure sensor is provided on the cover member and detects the pressure of the intake air.

The invention provides an engine control method, a vehicle control unit and a vehicle, and relates to the technical field of vehicle control. According to the method, an engine is not controlled under the conditions that a hand brake is pulled up and the opening degree of an accelerator is smaller than a first preset opening degree threshold value, and an accelerator pedal signal is responded through an ECU; the purposes of preventing the vehicle from suddenly moving due to mistakenly stepping on the accelerator during parking and avoiding accidents are achieved, meanwhile, when the hand brake is loosened and the brake opening degree is smaller than the preset brake opening degree threshold value, the engine is switched into the rotating speed control mode, the purposes of providing proper engine braking force and avoiding engine flameout are achieved when the vehicle is slightly braked, and the safety of the vehicle is improved. Therefore, the technical problem of engine flameout during starting of the AMT is solved, and the technical effects that vehicle jerking caused by engine flameout is avoided, and smoothness and comfort in the driving process are improved are achieved.

The invention provides a vehicle control device capable of performing torque control corresponding to curve travel. A vehicle control device according to one embodiment of the present disclosure is provided with a control unit that derives a target torque for each wheel by adding a fluctuating torque for each wheel, which fluctuates periodically, to a requested torque for each wheel in response to an accelerator opening degree. And torque-controlling each motor on the basis of the derived target torque for each wheel. When a turning of the vehicle is detected, the control means is capable of setting a first gain of the fluctuating torque applied to each of the motors on the outer wheel side to a value greater than a second gain of the fluctuating torque applied to each of the motors on the inner wheel side.

The invention provides an AMT upshift opportunity optimization method, system and device and a medium, and belongs to the technical field of commercial vehicle AMT. A driving intention is recognized based on fuzzy logic; respectively establishing four groups of corresponding relations of accelerator opening-vehicle speed, vehicle speed-rotating speed deviation, accelerator opening-acceleration factor and acceleration-acceleration factor, and acquiring associated data; calculating an offset coefficient P in a dynamic compensation mode; dual-mode gear shifting logic is adopted, an MAP strategy is used in a conventional working condition, and P is used for correcting the upshift rotating speed in a dynamic mode. Through deep coupling of the intention of a driver and vehicle dynamics, self-adaptive adjustment of the upshift opportunity is achieved, the fuel economy of the conventional working condition is guaranteed, the requirement for strong acceleration is met, power response timeliness is improved, and gear shifting impact is reduced.

The invention discloses a vehicle control method which comprises the following steps: after a flameout instruction is detected, acquiring a battery instantaneous charging power limit value and flameout charging power under a current working condition; the magnitude relation between the instantaneous charging power and the flameout charging power is judged, if the instantaneous charging power is displayed to be smaller than the flameout charging power, it is indicated that the current battery is full of electricity, and knocking noise cannot be improved by increasing the power generation torque, the vehicle is controlled through a first control strategy, and the first control strategy is used for controlling the opening degree of a throttle valve of an engine. When the instantaneous charging power limit value is not smaller than the flameout charging power, it is indicated that the current battery is not in the full electric quantity state, charging can be continued, under the working condition, the vehicle can be controlled through the first control strategy and / or the second control strategy, and the noise problem is solved. Namely, by controlling the opening degree of the throttle valve and / or controlling the torque of the generator, the rotating speed fluctuation of the engine is reduced, so that the knocking noise is reduced.

Valve armature (10) for a solenoid valve, comprising a base body (11) and a plunger (20) cooperating with a valve seat, wherein a damping device (24) is arranged between the plunger (20) and the base body (11), which has a cavity (24.2) fillable with a damping medium (24.6) and a throttle opening (24.4) through which the damping medium (24.6) flows out of or into the cavity (24.2), wherein the plunger (20) has a recess (21.2) at an end region (21) facing the base body (11) and the base body (11) has an end wall (11.4) at an end region (11.2) facing the plunger (20), wherein the damping device (24) provides a damping force when the plunger (20) strikes the dampens the impulse arising in the valve seat, wherein the end wall (11.4) and the recess (21.2) form the cavity (24.2) of the damping device (24), wherein the defined cavity (24.2) between plunger (20) and base body (11) the stiffness of a mechanical interface between plunger (20) and base body (11) is deliberately weakened and thus acts as a spring element.

The present application relates to the technical field of vehicle control, and discloses an automobile accelerator pedal anti-misapplication method and apparatus, a device, a medium, and an automobile. The method comprises: upon detecting a change in a position of an accelerator pedal, determining whether an obstacle vehicle is present ahead in a lane in which an automobile is traveling; if an obstacle vehicle is present, predicting, according to driving information of the automobile, whether a user will perform a lane change to pass the obstacle vehicle; if no lane change is being performed, determining, according to relative driving states of the automobile and the obstacle vehicle and accelerator pedal position information, whether the accelerator pedal has been misapplied; and if determined that the accelerator pedal has not been misapplied, outputting power according to a throttle opening degree corresponding to the accelerator pedal, or if determined that the accelerator pedal has been misapplied, controlling power output. By making a comprehensive evaluation using multiple parameters, the present application can predict a driving intention of a driver, so as to accurately determine, on the basis of the driving intention, whether an accelerator pedal has been misapplied, thereby preventing accelerator restriction when the accelerator pedal has not been misapplied, while also ensuring driving safety in a timely manner when the accelerator pedal has been misapplied.

Embodiments of the present application provide a vehicle demand power prediction method and device, a vehicle control device and a hybrid vehicle. The present application relates to the technical field of automobiles. The method comprises: obtaining the current gear, first shaft speed, second shaft speed, current throttle opening, current road slope information and current vehicle weight information of a target hybrid vehicle; calculating the third shaft speed of the drive motor on the target hybrid vehicle according to the first shaft speed and the second shaft speed, and using the gear transmission information of the hybrid transmission; calculating the initial peak demand power of the target hybrid vehicle according to the first shaft speed of the engine, the second shaft speed of the generator and the third shaft speed of the drive motor; and correcting the initial peak demand power according to the current throttle opening, the current road slope information and the current vehicle weight information to obtain the target demand power of the target hybrid vehicle. The present application effectively improves the prediction accuracy of demand power and achieves the optimization goal of fuel economy.

The application discloses a control method, system, device and storage medium of a hybrid vehicle, applied to the technical field of vehicle control, and comprises the following steps: detecting the throttle opening and controlling the power output size of the engine according to the throttle opening; when it is detected that the throttle opening change rate is greater than a preset first threshold value, a first corresponding rule is used to select an auxiliary change amount corresponding to the current throttle opening change rate from N gear auxiliary change amounts as a current first auxiliary change amount; the actual auxiliary amount at the last moment is superposed with the current first auxiliary change amount, and the superposition result is limited by a set maximum auxiliary amount threshold value to obtain the actual auxiliary amount at the current moment; and the size of the auxiliary amount of the motor is controlled to be the size of the actual auxiliary amount at the current moment. According to the scheme, the hybrid vehicle can be effectively controlled, the driving controllability of the user to the vehicle is improved, and the driving experience and driving safety of the user to the hybrid vehicle are ensured.